Features:The teaching model is made of high quality PVC material, which is non-toxic, harmless and durable.Feature with standard technology and vivid design, simple disassemble and carry.Life-size regional human lung model on base for anatomical study.This model is designed as a teaching aid for anatomy and physiology courses.Ideal for teaching and studying by doctors or other professionals.Specification:Material: PVCSize: approx.13.5x15cm/5.31x5.91inColor: As pictures shownQuantity: 1 SetNote:Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes:1 Set x Human Lung Model (other demonstration accessories in the picture is not included.?